Q21 Congenital malformations of cardiac septa

Non-billable header with 7 child codes.

Excludes1 (never code together)

• acquired cardiac septal defect (I51.0)

Applies from Q21 Congenital malformations of cardiac septa

Excludes1 (never code together)

• acquired cardiac septal defect (I51.0)

Codes under Q21

• Q21.0 Ventricular septal defect
• Q21.1 Atrial septal defect
• Q21.2 Atrioventricular septal defect
• Q21.3 Tetralogy of Fallot
• Q21.4 Aortopulmonary septal defect
• Q21.8 Other congenital malformations of cardiac septa
• Q21.9 Congenital malformation of cardiac septum, unspecified

Code annotations containing back-references to Q21

Back-references to Q21

• Code Also: I27.21 Secondary pulmonary arterial hypertension ("congenital heart disease (Q20-Q28)")
• Type 2 Excludes: P29 Cardiovascular disorders originating in the perinatal period ("congenital malformations of the circulatory system (Q20-Q28)")
• Code Also: Q87.85 MED13L syndrome ("congenital malformations of cardiac septa (Q21.-)")
• Code Also: Z71.87 Encounter for pediatric-to-adult transition counseling ("congenital malformations of the circulatory system (Q20-Q28)")

Back-references to Q21

• Code Also: I27.21 Secondary pulmonary arterial hypertension ("congenital heart disease (Q20-Q28)")
• Type 2 Excludes: P29 Cardiovascular disorders originating in the perinatal period ("congenital malformations of the circulatory system (Q20-Q28)")
• Code Also: Q87.85 MED13L syndrome ("congenital malformations of cardiac septa (Q21.-)")
• Code Also: Z71.87 Encounter for pediatric-to-adult transition counseling ("congenital malformations of the circulatory system (Q20-Q28)")

Nearby codes

• Q21 Congenital malformations of cardiac septa (this code)
• Q21.0 Ventricular septal defect
• Q21.1 Atrial septal defect
• Q21.10 Atrial septal defect, unspecified
• Q21.11 Secundum atrial septal defect
• Q21.12 Patent foramen ovale